Dual sites modulating MoO2 nanospheres for synergistically enhanced electrocatalysis of water oxidation

Fe‐Incorporated Ni/MoO2 Hollow Heterostructure Nanorod Arrays for High‐Efficiency Overall Water Splitting in Alkaline and Seawater Media

“…It shows that, compared with NiMoO 4 , no significant dissolution of Mo can be found in NiFe/Fe‐MoO 2 , consistent with the recent study results on MoO 2 for OER. [ 17,25 ]…”

“…It shows that, compared with NiMoO 4 , no significant dissolution of Mo can be found in NiFe/Fe-MoO 2 , consistent with the recent study results on MoO 2 for OER. [17,25] improve its activity, only demanding an overpotential as low as 34 mV to drive the current density of 10 mA cm −2 , almost identical to Pt/C. Additionally, in Figure 4b, it is noted that the HER activity of NiFe/Fe-MoO 2 at 200 mA cm −2 can exceed that of the benchmark Pt/C electrode.…”

“…[14] Besides, it was reported that the incorporation of Fe into NiOOH can improve the conductivity of NiOOH and the electrochemical redox property of Ni sites, thus optimizing the adsorption energy of intermediates, and then boosting the catalytic activity. [15] On the other hand, Fedoped Mo-based materials, such as Fe-doped MoS 2 , [16] Ni, Fe co-doped MoO 2 , [17] and Fe-doped MoO 2 /MoO 3 [18] exhibit better OER intrinsic activity compared to pristine Mo-based materials. In this context, it is feasible to introduce Fe to significantly boost the OER activity of NiMo-based catalysts while retaining its high HER activity as a novel bifunctional catalyst.…”

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

“…The XRD results of MOMC@C materials (Figure 1b) indicate that the diffraction peaks at 34.4°, 37.8°, 39.4°, 52.1°, 61.5°, 69.6°, 74.6° and 75.5° correspond to (100), (002), (101), (102), (110), (103), (112) and (201) crystal planes of hexagonal Mo 2 C structure, [29,30] while the other peaks at 26.0°, 36.9° and 53.6° correspond to the (−111), (111) and (−222) crystal planes of MoO 2 (JCPDS No. 32‐0671), respectively, [31,32] indicating that both Mo 2 C and MoO 2 phases exist in as‐prepared materials. Additionally, there is an obvious effect of the amount of pomelo‐peel on the composition and morphology of as‐prepared hybrid materials.…”

Substrate self-derived porous rod-like NiS/Ni9S8/NF heterostructures as efficient bifunctional electrocatalysts for overall water splitting

“…8 High valence transition metals with 3d orbitals can enhance the mental-O interactions and promote the adsorption and desorption of intermediates. 9 A number of transition metal-based electrocatalysts have been developed, mainly transition metal-based oxides (TMOs), [10][11][12] phosphides (TMPs), [13][14][15] sulfides (TMSs), [16][17][18] carbides (TMCs), [19][20][21] and hydroxides (Hydroxide). [22][23][24] Due to their extraordinary catalytic activity, TMSs have recently attracted more attention and are being used as catalysts for water electrolysis.…”